653641364 has 24 divisors (see below), whose sum is σ = 1212214248. Its totient is φ = 307328000.

The previous prime is 653641357. The next prime is 653641367. The reversal of 653641364 is 463146356.

It can be written as a sum of positive squares in 4 ways, for example, as 362597764 + 291043600 = 19042^2 + 17060^2 .

It is a super-4 number, since 4×653641364⁴ (a number of 36 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653641367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89864 + ... + 96864.

It is an arithmetic number, because the mean of its divisors is an integer number (50508927).

Almost surely, 2^653641364 is an apocalyptic number.

It is an amenable number.

653641364 is a deficient number, since it is larger than the sum of its proper divisors (558572884).

653641364 is a wasteful number, since it uses less digits than its factorization.

653641364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8395 (or 8393 counting only the distinct ones).

The product of its digits is 155520, while the sum is 38.

The square root of 653641364 is about 25566.4108548697. The cubic root of 653641364 is about 867.8536796688.

The spelling of 653641364 in words is "six hundred fifty-three million, six hundred forty-one thousand, three hundred sixty-four".